Portion of a housing



FIG. 1 is a front, perspective view of a portion of a housing showingour new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof, the left side view being a mirrorimage; and,

FIG. 5 is a top view thereof.

The broken lines form no part of the claimed design.

The ornamental design for a portion of a housing, as shown anddescribed.